Spinning and like textile frame



April 26, 1932.

A. L. BENSON SPINNING AND LIKE TEXTILE FRAME Filed Nov. 19, 1930 4 Sheets-Sheet -l April 26, 1932. BENSON 1,855,437

SPINNING AND LIKE TEXTILE FRAME Filed Nov. 19, 19 30 '4 Sheets-Sheet 2 A ril 26, 1932. A. L. BENSON 1,855,437

SPINNING AND LIKE TEXTILE FRAME Filed Nov.l9, 1930 4 Sheets-Sheet 5 April 1932- A L. BENSON 1,855,437

SPINNING AND LIKE TEXTILE FRAME Filed Nov.19, 1930 4 Sheets-Sheet, 4

1 1 \\\\:NN.\\\\\ Fl G 8 "ii? m "1 Patented Apr. 26, 1932 UNITED STATES ARTHUR LANGSTAFF BENSON, or DUNDEE, ANGUS, SCOTLAND- SPINNING AND LIKE TEXTILE FRAME Application filed November 19, 1930, Serial No. 496,583, and in Great Britain November 28, 1929.

This invention relates to underdriven spinning, twisting, doubling, roving and like textile frames and has for an object to provide an improved mounting of the flyer which per- 8 mits of increase in working speed without vibration and also reduction of the time occupied in dotting, thereby realizing in effect the most important advantages of self-dofling arrangements.

Another object is to provide an arrangement which while applying braking'eifort to the bobbin will not disturb the central position of the bobbin.

To realize the first-mentioned object of the invention, the flyer, in lieu of being fixed to the spindle, is mounted to be rotatable with one member of a bearing concentric with the underdriven spindle and is adapted to be instantly engaged with and disengaged from the spindle by being dropped thereon or lifted therefrom. Thus, the flyer structure may form part of an assembly mounted for vertical or tilting movement, as, for example, by oper ation of a lever, whereby, on rocking the lever, the flyer may be lifted clear of the spindle, exposing the upper end of the spindle while leaving the yarn threaded in the flye-r. As in action the flyer is centered by the bearing member, the spindle is steadied at its upper end as well as below, so that there is no liability to whipping or vibration of the spindle even at high speed. 7

' To realize the second mentioned object there is provided a drag device in which the braking effort is applied at points so distributed that the forces tending to displace the bobbin from central position neutralize one another, or in which no forces tending to displace the bobbin from central position are set up.

In the accompanying drawings Figs. 1 and 2 are vertical sections at right angles to each other of a flyer equipment embodying the invention. 3 is a plan view. Fig. t is a detail view similar to the upper part of Fig. 1 showing a built up form of flyer, functioning similarly to the flyer shown in Figs. 1 and 2. Figs. 5 and 6 are, respectively, a plan and a vertical section showing a modification. Figs. 7 and 8 are, respectively, a plan and a vertical section, showing another modification. Fig. 9 is a vertical section showing yet another modification. 9

As represented in Figs. 1 and 2, the flyer 1 is fitted to rotate as a unit with a bearing member 2 concentric with the spindle 3, the spindle 3 being notched at its upper end for engagement by a pin 4 extending diametrally of the member 2 so that the flyer and the bearing member may be simply dropped into place, the flyer boss being centered on the coned upper end of the spindle 3.

The bearing as a whole is sustained by one arm 5 of a rock-lever adapted to be rocked by operationof a handle 6, whereby the member 2 may be lifted clear of the spindle 3 and the flyer raised to expose the upper end of the spindle 3 while leaving the yarn threaded in the flyer.

The bobbin 7 impaled on the spindle 3 is supported in a socket member 8 centered on the lifter. (See also Fig. 3.)

At .diametrally opposed points the socket member 8 carries pins 9 engageable with two reversely bent parallel bars 10 each guided at the return bend over a pin 11 fitted to the lifter.

At one end each bar 10 is connected toa coil spring 12 anchored to the lifter. At its opposite upset end the bar carries a brake shoe 13 slidable with a floating block 14 and engageable with the usual groove in the bottom flange of the bobbin.

It will be seen that partial rotation of the socket 8 will eflect equal and opposite end wise movements of the bars 10 and cause simultaneous application or release of the brake shoes operative on diametrally 0pposed points of the bobbin.

In the modified construction shown in Figs. 5 and 6 there is'employed for applying drag to the bobbin a pair of diametrally opposed brake shoes 16 engageable externally with the lower flange of the bobbin, each shoe extending over an arc of about 90 and each pivoted at one end to an arm 17 upstanding from a light plate 18 on which the bobbin rests and which plate 18 is centered in the bobbin lifter.

Fulcrumed at two diametrally opposed fixed points are two levers 19 each pivoted between its ends to a brake shoe 16, the portion of the lever 19 extending beyond the pivot being connected by a spring 20 with one of the arms 17 With the described arrangement, as the plate 18 rotates partially and tends to bring the shoes against the bobbin, the. forces set up tending to move the shoes with the bobbin are balanced by opposing forces through the levers 19.

In the modified form shown in Figs. 7 and 8 the bobbinis formedwith a, cavity and, there is adopted an arrangement employing internal brake shoes similar to that shown in Figs. 5 and 6.

Alternatively, to produce the required drag there may be provided as shown in Fig. 9 what is in effect a multiple-plate clutch comprising a set of plates 21 carried by a boss 22 fixed to rotate with the bobbin (as by being of polygonal section and engaging a polygonal recess in the bottom of the bobbin) andja set of stationary plates 23 interleaved with the plates 21.

, Thelresistance to rotation set up by the clutch increases with the weight of the bobbin, so that the drag is'increased as the bobbin becomes filled c. Or as the bobbin speed increases. What I claim is 1. In a textile frame, the combination of an under-driven bobbin-carrying spindle, a bearing comprising relatively rotatable members jointly movable vertically towards and away from said spindle, said bearing when in operative position being concentric with said spindle, a flyer connected to rotate with one. member of said bearing and to participate in the vertical movement of said bearing, said flyer. being adapted for instantaneous engagement with and disengagement from the upper end of said spindle by its vertical movement with said bearing, and a bobbin dragdevice surrounding said spindle belowsaid flyer.

2. InateXtile frame, the combination of an .underrdriven bobbin-carrying. spindle, a bearing assembly comprising relatively r0- tatable .members, a, rock-lever supporting said bearingand adapted to be rocked to lift said bearing away from said spindle, said hearing when in operative position being concentricwith said spindle, a flyer connected to rotate with one. member of said bearing andtto participate. in the vertical movement of said bearing, said fiyer being adapted for instantaneous engagement with and disengagement from the upperend of said spindle by,.its vertical movement with said bearing, anda bobbin drag device surrounding said spindle below said flyer. V Intestimony whereof I have signed my name, to this specification.

ARTHUR LANGSTAFF BENSON. 

